usched questions and a patch
I've got a question about the TAILQ_ENTRY(lwp) lwp_procq in struct lwp - why
isn't it a part of lwp_usdata union? Isn't it a usched-dependent data? What
if a different usched wants to hold its lwps in e.g. red-black tree or a
Another thing I noticed is that usched_set() syscall does not zero the
content of lwp_usdata which makes impossible for the newly selected usched
to distinguish between an lwp it already had on its queue/tree/whatever and
had already put some data into its lwp_usdata, and a 'new' lwp it will get in
the following call to acquire_curproc() from userexit() IIRC.
What do You think about the attached patch?
And one more thing - what do You think about adding another usched API call,
e.g. exiting_curproc() called from exit1() instead of release_curproc() so
that a usched could (1) actually trace lwps during their lifetime and
(2) differentiate between lwps 'only' going into kernel and the ones that do
Updated by belczyk over 13 years ago
On Sun, May 10, 2009 at 10:17:25AM +0000, Alex Hornung (via DragonFly issue tracker) wrote:
Alex Hornung <email@example.com> added the comment:
Is the attached patch of any interest whatsoever? I'm not familiar enough with the
It is so old... please close this issue.